Sorry if this bug has been mentioned before.
This works:
#local Temp_function = function { f_sphere(x + 1, y + 1, z + 1, 1) }
But this doesn't:
#local Temp_var = <1,1,1,>;
#local Temp_function = function { f_sphere(x + Temp_var.x, y + Temp_var.y, z +
Temp_var.z, 1) }
